package main

import (
	"context"
	"fmt"
	"os"
)

const usage = `br

  br auth <name> [server]            sign in, prints a link to open
  br propose [remote]                push HEAD to refs/proposals/new
  br fetch <n>                       fetch proposal n to the branch prop-n
  br notes                           fetch every note ref
  br threads                         list the threads you have fetched
  br thread <n>                      print thread n
  br reply <n> -m <msg>              append a comment and push the note

Every command prints the git it runs before it runs it. Nothing here is
required: each one is a shortcut for a command you can type yourself.
`

func main() {
	if err := run(os.Args[1:]); err != nil {
		fmt.Fprintln(os.Stderr, "br: "+err.Error())
		os.Exit(1)
	}
}

func run(args []string) error {
	if len(args) == 0 {
		fmt.Print(usage)
		return nil
	}
	ctx := context.Background()
	switch args[0] {
	case "auth":
		return cmdAuth(ctx, args[1:])
	case "propose":
		return cmdPropose(ctx, args[1:])
	case "fetch":
		return cmdFetchProposal(ctx, args[1:])
	case "notes":
		return cmdNotes(ctx, args[1:])
	case "threads":
		return cmdThreads(ctx, args[1:])
	case "thread":
		return cmdThread(ctx, args[1:])
	case "reply":
		return cmdReply(ctx, args[1:])
	case "help", "-h", "--help":
		fmt.Print(usage)
		return nil
	default:
		return fmt.Errorf("%q is not a br command. run br with no arguments to see them", args[0])
	}
}